Add 75/4 and 63/90
1st number: 18 3/4, 2nd number: 63/90
75/4 + 63/90 is 389/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
75/4 = 75 × 45/4 × 45 = 3375/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
63/90 = 63 × 2/90 × 2 = 126/180 - Add the two like fractions:
3375/180 + 126/180 = 3375 + 126/180 = 3501/180 - 3501/180 simplified gives 389/20
- So, 75/4 + 63/90 = 389/20
In mixed form: 199/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/8+63/90 75/12+63/90 75/20+63/90 75/28+63/90